Amazon has the 3-Pack 16oz Bottles of Jif Creamy Peanut Butter for $7.26 - 20% off coupon (check "Save an extra" box, eligible on first S&S order for this product) - 5% off with Subscribe & Save (can cancel at any time) = $5.45 with free shipping on $25+ or with Prime. Roughly $1.81 per jar vs. $2.42 at Walmart.  Around 11 cents per ounce.